4-iminocyclobutenones: Synthesis and building-blocks of aminohydroquinones and annulated quinolines
- Author(s): Oppermann, G
- Stranberg, M
- Moore, HW
- Schaumann, E
- Adiwidjaja, G
- et al.
Published Web Locationhttps://doi.org/10.1055/s-0029-1218767
Two methods are presented for the synthesis of the title compounds starting from cyclobutenediones: an alkoxide substitution approach and a Staudinger reaction. Unsaturated lithiumorganyls may be added to the remaining carbonyl group and on heating lead to ring enlargement in a cascading process. 4-Alkenyl or 4-aryl derivatives yield aminophenols or -naphthols; 4-alkynyl compounds give cyclopenta-annulated quinolines. © Georg Thieme Verlag Stuttgart.
Many UC-authored scholarly publications are freely available on this site because of the UC Academic Senate's Open Access Policy. Let us know how this access is important for you.